January 7, 2009
An artist’s interpretation of a manned Mars base sans space shuttles. Credit: NASA/John Frassanito and Associates. Click to enlarge.
The co-founder of a rocket launch firm has proposed an audacious plan to send astronauts on a one-way trek to Mars using a pair of tethered U.S. space shuttles that would parachute to the Martian surface.
Inventor Eric […]
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January 7, 2009
A new study from the National Academy of Sciences outlines grim possibilities on Earth for a worst-case scenario solar storm.
When the sun is in the active phase of its 11-year cycle, it can unleash powerful magnetic storms that disable satellites, threaten astronaut safety, and even disrupt communication systems on Earth. The worst storms can knock […]
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January 7, 2009
A new video suggests that Cassiopeia A, the remnant of a supernova that exploded in the Milky Way some 330 years ago, may be channelling its energy into creating high-speed charged particles called cosmic rays.
Daniel Patnaude of the Smithsonian Astrophysical Observatory in Cambridge, Massachusetts, has assembled eight years of observations to create a time-lapse movie […]
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January 6, 2009
LONG BEACH, CALIF.—One of the unnerving aspects of astronomy as a science is how astronomers continue to argue over measurements you’d have thought they settled long ago. A good recent example is the mass of our own Milky Way galaxy. Estimates keep swinging back and forth, and our galaxy and the Andromeda galaxy periodically switch […]
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January 6, 2009
The Milky Way came into unprecedented focus on Monday as astronomers released the sharpest infrared picture yet taken of the roiling furnace at the centre of galaxy. The new mosaic reveals massive filaments of gas as well as a new population of massive, rogue stars.
This portrait of the Milky Way’s central region was made by […]
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January 6, 2009
(Jan. 6, 2009) — Two new efforts have taken a famous supernova remnant from the static to the dynamic. A new movie of data from NASA’s Chandra X-ray Observatory shows changes in time never seen before in this type of object. A separate team will also release a dramatic three-dimensional visualization of the same remnant.
3-D […]
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January 6, 2009
Artist’s view of Spitzer seen against the infrared sky. The band of light is the glowing dust emission from the Milky Way galaxy seen at 100 microns (as seen by the IRAS/COBE missions). (Credit: NASA/JPL-Caltech)
UK astronomers are set to expand our knowledge of the history of our Universe with a new project to map the […]
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January 6, 2009
(Jan. 5, 2009) — A research team that has developed the first complete map of the Milky Way galaxy’s spiral arms. The map shows the inner part of the Milky Way has two prominent, symmetric spiral arms, which extend into the outer galaxy where they branch into four spiral arms.
"For the first time these arms […]
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January 5, 2009
The water in Venus’ atmosphere is gone with the wind, new detections suggest.
Venus, like Earth and Mars, is immersed in a flow of charged gas from the sun. Since Venus (and Mars) doesn’t have a magnetic field, gases in the upper atmosphere become charged and interact with the solar wind. Scientists think the solar wind […]
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January 5, 2009
(Jan. 5, 2009) — NASA’s Lunar Reconnaissance Orbiter, or LRO, has successfully completed thermal vacuum testing, which simulates the extreme hot, cold and airless conditions of space LRO will experience after launch. This milestone concludes the orbiter’s environmental test program at NASA’s Goddard Space Flight Center in Greenbelt, Md.
The thermal vacuum testing on the spacecraft […]
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